In the figure we have a simple thermometer with NTC, using an analog current indicator. The adjustment is made in the trimpot and the power is done by batteries.
The shunt type regulators are connected in parallel with the load, deflecting the current to...
This circuit for multiple sound inputs was found in a Radio Electronics from January 1992. It...
Suggested by an American documentation for 1969 neon lamps, this circuit provides SCR control with...